Meat and bone meal (MBM) and sewage sludge (SS) were the two raw materials used in this research. Every pyrolysis liquids obtained had different elemental analysis due to the raw material and the operational conditions used. Liquids obtained from meat and bone meal pyrolysis had one phase with a low water contained, whereas liquids obtained from sewage sludge had three phases, two of them were evaluated due to their properties similar a fuel. One characteristic...